Looking Beyond the Mockins 40 CuFt XXL Roof? 6 Alternatives Worth a Look
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The Mockins 40 CuFt XXL Roof Bag offers 40 cubic feet of soft-shell storage that fits vehicles with or without roof racks. Its vinyl construction and flexible mounting options make it a practical choice for high-volume cargo needs. However, you might seek mockins 40 cuft xxl roof alternatives if you prefer a hard shell for better impact resistance or need a smaller footprint for compact vehicles. Some buyers also look for different capacity sizes or specific security features that the soft bag does not provide.
We selected 6 alternatives based on their published specifications to help you find a better fit. These products share key traits with the original, such as roof mount compatibility and waterproof materials, but vary in shell type, dimensions, and opening style. You can compare the exact cubic feet, weight, and dimensions to see which option suits your vehicle and cargo size. This list covers soft bags for rackless use and hard boxes for added durability, ensuring you have clear data to make your decision.
How the Alternatives Compare
Mockins 30 cu ft Soft-Shell Vinyl Roof Bag
The Mockins 30 CuFt Soft-Shell Vinyl Roof Bag reduces capacity to 30 cubic feet, making it a lighter option at 15.5 pounds. Its dimensions shrink to 60 by 43 by 20 inches, which may fit smaller vehicles better than the 72-inch original. You give up 10 cubic feet of space, but you retain the same vinyl waterproof construction and flexible mounting for vehicles without roof racks. This model is ideal if you need reliable storage but find the XXL size too bulky for your daily needs or garage space.
Naturnest 12.7 Cu Ft Soft Roof Bag
The Bayati Naturnest 12.7 Cu Ft Soft Roof Bag offers significantly less volume at 12.7 cubic feet, with dimensions of 47.2 by 27.6 by 15 inches. It is a compact soft-shell option designed for smaller loads or vehicles where space is limited. You sacrifice substantial storage capacity compared to the 40 CuFt original, but you gain a much smaller footprint that is easier to manage. This bag suits drivers who need basic weather protection for light gear and prefer a less obtrusive profile on their vehicle roof.
MCBD 40 cu ft Soft-Shell Roof Bag
The MCBD 40 CuFt Soft-Shell Roof Bag matches the original capacity of 40 cubic feet but differs in its recommended use. While the Mockins works on vehicles with or without racks, the MCBD requires a roof rack for installation. It weighs slightly more at 16.3 pounds. You get similar volume and soft-shell material, but you lose the flexibility of rack-less mounting. This alternative is best for SUV owners who already have a roof rack and want a dedicated, high-volume soft carrier without the complexity of universal strap systems.
ENROAD XL Slim Roof Box with Solar Panel
The ENROAD XL Slim Hard Shell Cargo Box shifts from soft vinyl to a rigid hard shell, offering different protection and security features. It includes a solar panel and biometric security, which the vinyl bag lacks. You give up the flexible, low-profile nature of a soft bag and potentially some aerodynamic efficiency for these tech features. This box is designed for tech-focused travelers who need power charging and advanced locking mechanisms. It is a premium choice for those who prioritize innovative functionality over the simple, high-volume storage of a soft roof bag.
Pidock 13 cu ft Hard Shell Roof Box
The Pidock 13 Cu Ft Hard Shell Roof Box provides a rigid, secure container with dual-side opening access. It weighs 130 pounds, which is significantly heavier than the 15.8-pound vinyl bag. You trade the lightweight, flexible nature of the original for durable hard-shell protection and convenient side access. This option is suitable for buyers who prioritize impact resistance and easy loading from the side. It is a compact solution for light packing needs where weather protection and durability are more important than maximum volume or low weight.
FinerFurnis 12.4 Cu Ft Hard Shell Roof Box
The FinerFurnis 12.4 Cu Ft Hard Shell Roof Box offers a compact, rigid storage solution with dual-side opening. It weighs 32.2 pounds, making it heavier than the vinyl alternative. You sacrifice the 40 cubic feet of capacity for a smaller 12.4 cubic feet space, but gain the security and weatherproofing of a hard shell. This box is ideal for weekend trips where 12.4 cubic feet is sufficient. It suits drivers who want easy side access and robust protection for their gear without the bulk and weight of larger hard-shell carriers.
Quick picks
Our 7 picks
Mockins 40 CuFt XXL Roof Bag
Best for: vehicles without roof racks needing high volume storage
- Capacity
- 40 Cubic Feet
- Shell Type
- Vinyl
- Water Resistance
- Waterproof
- Security
- Combo lock
- Vehicle Compatibility
- Most vehicles, with or without roof rack
- Dimensions
- 72 x 48 x 20 in
View on Amazon: Mockins 40 CuFt XXL Roof Bag Affiliate link
This 40 cubic foot vinyl cargo bag offers 72 by 48 by 20 inches of storage space. It weighs 15.8 pounds and includes a full mounting kit with ratchet straps, hooks, and a roof mat. The design works with or without a roof rack, making it versatile for SUVs and trucks. It features waterproof zippers and a protective flap to keep gear dry during road trips or camping.
Pros
- 40 cubic feet of total capacity
- Mounts securely without a roof rack
- Includes 3 buckle and 3 ratchet straps
- Waterproof vinyl construction with sealed zippers
- Comes with a protective roof mat
Cons
- Soft vinyl shell lacks hard shell impact protection
- No fingerprint unlock or electronic security
- Manual ratchet strap tensioning only
Good fit if
- You need extra storage on a vehicle without a roof rack
- You are transporting large items like tents or sleeping bags
- You want a versatile carrier that adapts to different mounting styles
Skip if
- You prefer the security and aerodynamics of a hard shell box
- You need quick access with a fingerprint or keyless entry system
- You drive a small sedan with limited roof width
Verdict: Mockins 40 CuFt Soft Roof Bag provides ample space and flexible mounting for those without roof racks. It suits buyers prioritizing volume and adaptability over the durability of hard plastic shells.
Mockins 30 cu ft Soft-Shell Vinyl Roof Bag
Best for: vehicles without roof racks
- Capacity
- 30 cu ft
- Shell Type
- soft-shell vinyl
- Water Resistance
- waterproof
- Security
- combination lock
- Vehicle Compatibility
- vehicles with or without roof rack
- Dimensions
- 60 x 43 x 20 in
View on Amazon: Mockins 30 cu ft Soft-Shell Vinyl Roof Bag Affiliate link
This soft-shell vinyl cargo bag offers 30 cubic feet of storage with dimensions of 60 by 43 by 20 inches. It weighs 15.5 pounds and includes a protective roof mat, door hooks, and straps for installation on vehicles with or without roof racks. The waterproof design features a zipper flap and welded seams. It comes with a combination lock for security and a 10-year limited warranty.
Pros
- 30 cubic feet capacity
- Works with or without roof racks
- Includes roof mat and door hooks
- Waterproof vinyl with welded seams
- 10-year limited warranty
Cons
- Soft-shell design offers less aerodynamic efficiency than hard shells
- Lower 30 cubic feet capacity compared to 40 cubic feet alternatives
- Heavier at 15.5 pounds than slim hard shell carriers
Good fit if
- You need to carry cargo on a vehicle without roof racks
- You want a waterproof bag that folds into a carry case
- You prefer a budget-friendly option with included accessories
Skip if
- You require maximum aerodynamic efficiency for highway driving
- You need more than 30 cubic feet of storage space
- You prefer a rigid hard shell for added impact protection
Verdict: Mockins 30 CuFt Soft-Shell Roof Bag is a practical solution for drivers who need versatile storage on vehicles without existing roof racks. It suits those prioritizing waterproof protection and included installation hardware over aerodynamic performance.
Naturnest 12.7 Cu Ft Soft Roof Bag
Best for: smaller loads and vehicles without racks
- Capacity
- 12.7 Cu Ft (360L)
- Shell Type
- Soft (XPE foam core, Oxford fabric)
- Load Capacity
- 77.2 lbs (35kg)
- Water Resistance
- 100% Waterproof
- Vehicle Compatibility
- All vehicles with/without roof rack
- Dimensions
- 47.2 x 27.6 x 15 in
View on Amazon: Naturnest 12.7 Cu Ft Soft Roof Bag Affiliate link
The Bayati soft roof bag offers 12.7 cubic feet of storage with a 77.2 lbs load limit. Its low-profile design measures 47.2 x 27.6 x 15 inches and features an XPE foam core wrapped in Oxford fabric. This waterproof carrier weighs only 9.3 lbs and folds flat for compact storage. It fits vehicles with or without roof racks, making it a versatile option for smaller loads.
Pros
- 12.7 Cu Ft capacity with 77.2 lbs load limit
- Waterproof XPE foam core and Oxford fabric construction
- Fits vehicles with or without roof racks
- Folds flat to 1.6 inches for easy storage
Cons
- Smaller capacity than the 40 CuFt Mockins alternative
- Lower weight limit than hard shell cargo boxes
- Soft shell offers less security than hard plastic
Good fit if
- You need a compact carrier for smaller loads
- Your vehicle lacks a roof rack
- You want to fold the bag flat for storage
Skip if
- You require over 30 Cu Ft of space
- You need to carry loads near 150 lbs
- You prefer the security of a hard shell
Verdict: Bayati 12.7 Cu Ft Soft Roof Bag is a lightweight, waterproof option for drivers with smaller cargo needs or no roof rack. It suits those prioritizing easy storage and universal fit over maximum capacity.
MCBD 40 cu ft Soft-Shell Roof Bag
Best for: large volume storage on vehicles with roof racks
- Capacity
- 40 cu ft
- Shell Type
- soft-shell, 900D PVC tarpaulin
- Water Resistance
- 100% waterproof
- Security
- combination lock
- Dimensions
- 72 x 48 x 20 in
- Vehicle Type
- Car, SUV
View on Amazon: MCBD 40 cu ft Soft-Shell Roof Bag Affiliate link
This MCBD soft-shell roof bag offers 40 cubic feet of storage for large loads. It measures 72 by 48 by 20 inches and weighs 16.3 pounds. The 900D PVC tarpaulin shell is 100% waterproof. It includes ratchet straps, door hooks, and a combination lock for security. This carrier suits SUVs and trucks needing extra space without the bulk of a hard box.
Pros
- 40 cubic feet capacity for massive loads
- 100% waterproof 900D PVC tarpaulin shell
- Includes combination lock and anti-slip mat
- Folds flat for compact storage
Cons
- Soft shell offers less weather protection than hard cases
- Requires roof rails or crossbars for mounting
- 72-inch length may not fit all vehicle roofs
Good fit if
- You need maximum storage volume for long trips
- You want a waterproof bag that folds away easily
- You have a roof rack with crossbars or side rails
Skip if
- You drive a vehicle with a roof shorter than 68 inches
- You prefer the rigid protection of a hard-shell box
- You need a carrier that mounts directly to a bare roof
Verdict: MCBD 40 CuFt Soft-Shell Roof Bag provides ample space for gear but requires a roof rack. It is a solid choice for SUV owners who prioritize volume and waterproofing over rigid impact protection.
ENROAD XL Slim Roof Box with Solar Panel
Best for: solar charging and biometric security
- Shell Type
- Hard shell
- Opening
- Dual-side
- Water Resistance
- Waterproof
- Installation
- ClickHold Mounting System
- Vehicle Type
- SUV, Truck, Van
- Mount Type
- Roof Mount
View on Amazon: ENROAD XL Slim Roof Box with Solar Panel Affiliate link
This ENROAD hard shell box combines security with renewable energy. It features a dual-side opening for easy access and a 30W solar panel paired with a 24,000mAh LiFePO4 power bank. The unit includes a fingerprint sensor with a 0.5s response time and a ClickHold mounting system. It is designed for SUVs, trucks, and vans seeking advanced tech integration.
Pros
- Dual-side opening for convenient access from both sides of the vehicle.
- Integrated 30W solar panel and 24,000mAh LiFePO4 power bank for device charging.
- Capacitive fingerprint sensor supports up to 20 users with a 0.5s response time.
- ClickHold mounting system allows for secure attachment to roof bars in two steps.
Cons
- No cubic foot capacity listed in the specifications.
- Fingerprint sensor requires line-of-sight to operate.
- Higher complexity due to integrated electronics and solar components.
Good fit if
- You need secure, keyless access via fingerprint recognition.
- You want to charge devices using solar energy while traveling.
- You require dual-side access for loading cargo from either side of the car.
Skip if
- You prefer a simple, traditional hard shell without electronic features.
- You need a verified cubic foot capacity for strict packing limits.
- You want a lightweight solution without the weight of a power bank.
Verdict: ENROAD Slim Hard Shell Cargo Box offers unique solar charging and biometric security for tech-focused travelers. It suits buyers who value innovative features over standard capacity metrics.
Pidock 13 cu ft Hard Shell Roof Box
Best for: compact secure storage with side access
- Capacity
- 13 cu ft
- Shell Type
- ABS and PMMA
- Opening
- Dual side
- Load Capacity
- 130 lb
- Installation
- Tool-free
- Dimensions
- 55.91 x 29.53 x 14.96 in
View on Amazon: Pidock 13 cu ft Hard Shell Roof Box Affiliate link
This Pidock hard shell cargo box offers 13 cubic feet of storage with a 130 lb load capacity. Its dual-side opening design allows access from either side of your vehicle. The ABS and PMMA shell provides durability and UV protection. It mounts tool-free to crossbars up to 3 inches wide. This compact box suits buyers who need secure, weather-resistant storage without the bulk of larger carriers.
Pros
- 13 cubic feet internal capacity
- Dual-side opening for easy access
- Tool-free installation on crossbars up to 3 inches wide
- Key-locking security system
- ABS and PMMA hard shell construction
Cons
- 13 cubic feet capacity is smaller than the 30-40 cu ft alternatives on this list
- 130 lb load limit may restrict heavy gear loads
- Dimensions are narrower than soft bag alternatives, limiting wide item storage
Good fit if
- You need secure, weatherproof storage for weekend trips
- You want to load gear from the passenger side of your vehicle
- You have a smaller vehicle or prefer a low-profile roof box
Skip if
- You need to carry large, bulky items like kayaks or multiple suitcases
- You require a capacity larger than 13 cubic feet
- You prefer a soft bag that can stretch to fit irregular shapes
Verdict: Pidock 13 Cu Ft Hard Shell is a compact, secure option for buyers who prioritize durability and easy side access over maximum storage volume. It fits well for light packing needs where weather protection is key.
FinerFurnis 12.4 Cu Ft Hard Shell Roof Box
Best for: compact secure cargo with side access
- Capacity
- 12.4 Cu.Ft
- Shell Type
- ABS
- Opening
- dual-side
- Load Capacity
- 165 lbs
- Water Resistance
- waterproof
- Security
- locking system with two keys
View on Amazon: FinerFurnis 12.4 Cu Ft Hard Shell Roof Box Affiliate link
This FinerFurnis hard shell cargo box offers 12.4 cubic feet of storage with a 165 lb load capacity. Its dual-side opening allows access from either side of your vehicle, while the ABS shell provides waterproof protection. The tool-free installation fits square, round, or aero crossbars. It is a compact, secure option for SUVs and cars that need moderate cargo space without the bulk of larger soft bags.
Pros
- Dual-side opening for flexible access
- Waterproof ABS construction resists weather
- Tool-free installation on most crossbars
- Lockable with two included keys
Cons
- 12.4 CuFt capacity is smaller than the 40 CuFt alternatives
- 32.2 lb weight adds significant roof load
- No mention of aerodynamic noise reduction features beyond profile
Good fit if
- You need secure, weatherproof storage for moderate loads
- You want access from both sides of the vehicle
- You prefer a hard shell over a soft bag
Skip if
- You require over 20 cubic feet of cargo space
- You need a lightweight carrier under 25 lbs
- You prefer a soft-shell fabric design
Verdict: FinerFurnis 12.4 CuFt Hard Shell is a secure, compact solution for drivers who prioritize weather protection and side access over maximum volume. It fits well for weekend trips where 12.4 cubic feet is sufficient.
Specifications side by side
| Spec | Mockins 40 CuFt XXL Roof Bag | Mockins 30 cu ft Soft-Shell Vinyl Roof Bag | Naturnest 12.7 Cu Ft Soft Roof Bag | MCBD 40 cu ft Soft-Shell Roof Bag | ENROAD XL Slim Roof Box with Solar Panel | Pidock 13 cu ft Hard Shell Roof Box | FinerFurnis 12.4 Cu Ft Hard Shell Roof Box |
|---|---|---|---|---|---|---|---|
| Capacity | 40 Cubic Feet | 30 cu ft | 12.7 Cu Ft (360L) | 40 cu ft | not stated | 13 cu ft | 12.4 Cu.Ft |
| Shell Type | Vinyl | soft-shell vinyl | Soft (XPE foam core, Oxford fabric) | soft-shell, 900D PVC tarpaulin | Hard shell | ABS and PMMA | ABS |
| Opening | not stated | not stated | not stated | not stated | Dual-side | Dual side | dual-side |
| Load Capacity | not stated | not stated | 77.2 lbs (35kg) | not stated | not stated | 130 lb | 165 lbs |
| Water Resistance | Waterproof | waterproof | 100% Waterproof | 100% waterproof | Waterproof | not stated | waterproof |
| Security | Combo lock | combination lock | not stated | combination lock | not stated | not stated | locking system with two keys |
| Installation | not stated | not stated | not stated | not stated | ClickHold Mounting System | Tool-free | tool-free |
| Vehicle Compatibility | Most vehicles, with or without roof rack | vehicles with or without roof rack | All vehicles with/without roof rack | not stated | not stated | not stated | not stated |
| Dimensions | 72 x 48 x 20 in | 60 x 43 x 20 in | 47.2 x 27.6 x 15 in | 72 x 48 x 20 in | not stated | 55.91 x 29.53 x 14.96 in | 57.5 x 30.9 x 14.6 in |
| Recommended Use | Road trips, camping, moving | not stated | not stated | not stated | not stated | not stated | not stated |
| Vehicle Type | Car, SUV, Truck, Van | Car, SUV, Truck | SUV, Truck, Van | Car, SUV | SUV, Truck, Van | Car, SUV, Truck | Car, SUV, Truck |
| Mount Type | Roof Mount | Roof Mount | Roof Mount | Roof Mount | Roof Mount | Roof Mount | Roof Mount |
| Lockable | not stated | not stated | not stated | not stated | not stated | Lockable | Lockable |
| Includes Bag | not stated | With Bag | not stated | With Bag | not stated | not stated | not stated |
| Weight | 15.8 pounds | 15.5 pounds | not stated | 16.3 pounds | not stated | 130 pounds | 32.2 pounds |
| Size | 40 Cubic Feet | 30 Cubic Feet | not stated | 40 Cubic Feet | XL | 13 Cu.Ft White | 12.4 Cu.Ft |
| Color | Black | Black/Orange | Black | Blue | black | White | black |
| Model | MA-RB-40BLK-89-V1 | MA-RB-30OR-88-V1 | Soft | 40cf | Xl-400-e | Car Rooftop Cargo Box 13 Cu Ft | AZi739201w-uAO-Q9UKTquwdn |
If you evaluate outdoor gear too, you can compare trekassy 40 saucer swing stand alternatives by their dimensions.
Frequently asked questions
Which roof bag is best for vehicles without roof racks?
The Mockins 40 CuFt XXL Roof Bag is ideal for cars, SUVs, trucks, and vans lacking existing racks. Its soft shell design allows flexible mounting directly to the vehicle roof. This 40 cubic foot option provides ample space for large loads while adapting to various vehicle shapes without requiring additional hardware.
How does the Mockins 30 CuFt differ from the 40 CuFt model?
The 30 CuFt model offers reduced capacity and smaller dimensions compared to the 40 CuFt version. It measures 60 by 43 by 20 inches, making it suitable for smaller vehicles. Weighing 15.5 pounds, it is slightly lighter than the larger 15.8-pound option, providing a practical solution for drivers needing versatile storage.
Is there a lightweight soft shell option for smaller loads?
The Bayati Naturnest 12.7 Cu Ft Soft Roof Bag is a lightweight choice for smaller cargo needs. Measuring 47.2 by 27.6 by 15 inches, it fits well on SUVs, trucks, and vans. This soft shell option prioritizes easy storage and universal fit, making it a convenient alternative for drivers with limited space requirements.
Can I use a soft roof bag if I have roof racks?
Yes, the MCBD 40 CuFt Soft-Shell Roof Bag is designed for vehicles with roof racks. It provides 40 cubic feet of storage space and weighs 16.3 pounds. This blue soft shell option is a solid choice for SUV owners who prioritize volume and waterproofing, requiring a rack for secure mounting.
What hard shell roof box offers solar charging capabilities?
The ENROAD XL Slim Roof Box features a built-in solar panel for charging devices. This hard shell cargo box supports dual-side opening and is designed for SUVs, trucks, and vans. It emphasizes innovative features like biometric security, catering to tech-focused travelers who value unique functionalities over standard capacity metrics.
Which hard shell box is best for compact secure storage?
The Pidock 13 Cu Ft Hard Shell Roof Box provides compact, secure storage with dual-side access. Measuring 56.3 by 30.3 by 13.8 inches, it is lockable and suitable for cars, SUVs, and trucks. This white hard shell option prioritizes durability and weather protection, fitting well for light packing needs where side access is key.
How does the FinerFurnis 12.4 Cu Ft compare to other hard shells?
The FinerFurnis 12.4 Cu Ft Hard Shell Roof Box offers compact secure cargo with dual-side opening. It measures 57.5 by 30.9 by 14.6 inches and weighs 32.2 pounds. This black, lockable box is designed for cars, SUVs, and trucks, providing weather protection and side access for drivers who need a reliable, smaller volume option.